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Table 3 Performance of reported adherence for detecting virological failure in HIV-infected infants treated early by cART for at least 3 months (ANRS-PEDIACAM Study, 2008–2013, Cameroon)

From: Could caregiver reporting adherence help detect virological failure in Cameroonian early treated HIV-infected infants?

3a - All children

 

AUC

Sensitivity

Specificity

PPV

NPV

LR+

LR−

N

%

n

%

p

%

(n/N)

%

(n/N)

%

(n/N)

%

(n/N)

  

At M3

146

              

 VL ≥ 1000 cp /mL

 

41.8

(61)

            

  ≥ 1 current missed (A)

 

27. 4

(40)

49.4

0.870

26.2

(16/61)

71.8

(61/85)

40.0

(16/40)

57.5

(61/106)

1.0

1.0

At M12

126

              

 VL ≥ 1000 cp /mL

 

23.8

(30)

            

  ≥ 1 current missed (A)

 

11.1

(14)

53.8

0.260

16.7

(5/30)

90.6

(87/96)

35.7

(5/14)

77.7

(87/112)

1.8

0.9

  ≥ 2 cumulative missed (B)

 

23.8

(30)

64.2

0.005

63.3

(19/30)

67.7

(65/96)

38.0

(19/50)

85.5

(65/76)

2.0

0.5

 A or B

     

63.3

(19/30)

65.6

(63/96)

36.5

(19/52)

85.1

(63/74)

1.8

0.6

 A and B

     

16.7

(5/30)

89.6

(86/96)

41.7

(5/12)

78.1

(89/114)

2.3

1.0

At M24

79

              

 VL > 400 cp /mL

 

27.8

(22)

            

  ≥ 1 current missed (A)

 

13.9

(11)

56.6

0.100

22.7

(5/22)

89.5

(51/57)

45.5

(5/11)

75.0

(51/68)

2.2

0.9

  ≥ 8 cumulative missed (B)

 

62.0

(49)

57.7

0.130

72.7

(16/22)

42.1

(24/57)

32.7

(16/49)

80.0

(24/30)

1.3

0.7

 A or B

     

72.7

(16/22)

40.4

(23/57)

32.0

(16/50)

79.3

(23/29)

1.2

0.7

 A and B

     

22.7

(5/22)

91.2

(52/57)

50.0

(5/10)

75.4

(52/69)

2.6

0.9

3b Children accompanied by mothers

 

AUC

Sensitivity

Specificity

PPV

NPV

LR+

LR−

N

%

n

%

p

%

(n/N)

%

(n/N)

%

(n/N)

%

(n/N)

  

At M3

116

              

 VL ≥ 1000 cp /mL

 

41.4

(48)

            

  ≥ 1 current missed (A)

 

25.0

(29)

49.9

0.510

21.7

(12/48)

72.6

(51/68)

41.4

(12/29)

58.6

(51/87)

1.0

1.0

At M12

               

 VL ≥ 1000 cp /mL

92

22.8

(21)

            

  ≥ 1 current missed (A)

92

13.0

(13)

50.7

0.120

14.3

(3/21)

87.3

(62/71)

25.0

(3/12)

77.5

(62/80)

1.1

1.0

≥2 cumulative missed (B)

67

30.4

(21)

68.1

0.010

64.3

(9/14)

77.4

(43/55)

42.9

(9/21)

89.6

(43/48)

3.0

0.5

 A or B

92

    

76.2

16/21)

57.8

(41/71)

34.8

(16/46)

89.1

(41/46)

1.8

0.4

 A and B

92

    

14.3

(3/21)

95.8

(68/71)

50.0

(3/6)

79.1

(68/86)

3.4

0.9

At M24

               

 VL > 400 cp /mL

53

24.5

(13)

            

  ≥ 1 current missed (A)

53

9.4

(5)

51.4

0.410

7.7

(1/13)

90.0

(36/40)

20.0

(1/5)

75.0

(36/48)

0.8

1.0

  ≥ 8 cumulative missed (B)

4

0

(0)

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

 A or B

53

    

100

(13/13)

5.0

(2/40)

25.5

13/51

100

(2/2)

1.1

0.0

 A and B

4

    

NA

NA

NA

NA

NA

NA

NA

NA

NA

NA

  1. cART combined antiretroviral therapy, VL viral load, Mx duration covered from cART initiation to current visit, e.g. «M3» means «3 months duration since cART initiation», N total number, % percentage, n number of patients in the group, IQR interquartile range, current number of missed doses during the previous 3 days, cumulative total number of accumulated missed doses from M3 to current visit (M12 or M24), N total size, PPV positive predictive value, NPV negative predictive value, p AUC test, LR+ positive likelihood ratio, LR− negative likelihood ratio, NA not applicable, due to absence of patients with both virological failure and non-adherence